Bip39 Mnemonic. You would then do a fundamental recovery which has a command such as 1 below. (This command utilizes a sample wallet file bunlded with BTCRecover) Yes, BIP39 passphrases are circumstance-sensitive. Make sure you enter your passphrase exactly when you established it up, like any uppercase or lowercase letters. https://letsbookmarkit.com/story19539215/bip39-word-list-https-linktr-ee-bip39-5-simple-statements-about-bip39-mnemonic-explained